CN209908592U - Oil-gas separation chamber cover plate assembly for gasoline engine - Google Patents
Oil-gas separation chamber cover plate assembly for gasoline engine Download PDFInfo
- Publication number
- CN209908592U CN209908592U CN201920334174.XU CN201920334174U CN209908592U CN 209908592 U CN209908592 U CN 209908592U CN 201920334174 U CN201920334174 U CN 201920334174U CN 209908592 U CN209908592 U CN 209908592U
- Authority
- CN
- China
- Prior art keywords
- cover plate
- oil
- gas separation
- cavity
- separation chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000000926 separation method Methods 0.000 title claims abstract description 68
- 238000005192 partition Methods 0.000 claims description 21
- 239000000203 mixture Substances 0.000 abstract description 9
- 239000003921 oil Substances 0.000 description 16
- 230000004888 barrier function Effects 0.000 description 2
- 230000000241 respiratory effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
Landscapes
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses oil-gas separation chamber cover plate assembly for gasoline engine, including oil-gas separation chamber cover plate, labyrinth cover plate and PCV valve assembly, oil-gas separation chamber cover plate inboard surface is equipped with median septum and lower baffle, the median septum divides oil-gas separation chamber cover plate inner chamber into first inner chamber and second inner chamber, the lower baffle is located first inner chamber, be connected with many blend stops that are connected with lower baffle or median septum between lower baffle and the median septum, the labyrinth cover plate assembles and encloses into the second cavity with the second inner chamber behind the second inner chamber inner edge, the cavity that labyrinth cover plate surface and first inner chamber in the oil-gas separation chamber cover plate linked together is first cavity, the labyrinth cover plate is equipped with the inlet port, the gas-oil mixture who circles round in first cavity gets into the second cavity through the labyrinth cover plate inlet port, be equipped with the baffle in the second cavity, still be equipped with the oil return opening on the labyrinth cover plate, oil-gas separation chamber cover plate one side is connected, the PCV valve assembly is disposed in the outlet line.
Description
Technical Field
The utility model relates to an engine part, in particular to oil-gas separation chamber cover plate assembly for gasoline engine.
Background
The existing oil-gas separation assembly structure is shown in fig. 1-4, and includes a cylinder head cover (19) and a diaphragm assembly 24 assembled inside the cylinder head cover (19), the diaphragm assembly 24 and the cylinder head cover (19) are combined to form a forced ventilation (i.e. PCV valve) separation chamber and a breathing pipe separation chamber, and an inlet guide plate 26 of the diaphragm assembly 24 forms two oil-gas mixture inlets 25, which respectively flow to the two separation chambers. A cross section channel change is adopted in an oil-gas separation channel of the PCV valve separation chamber 21 to be combined with a guide plate II 29, an oil return cup 23 is arranged at an oil baffle plate 20, an oil return baffle plate 27 is arranged near the oil return cup at an outlet, oil drops are formed by oil-gas mixture through the separation channel, and the oil drops return to the boss shaft chamber through the oil return cup 23. The respiratory tube oil-gas separation channel of the respiratory tube separation chamber 22 is formed by a guide plate I28, and then is matched with an oil return cup 23 and an oil return baffle plate 27 to form an oil-gas separation chamber. The prior art has the following disadvantages: the oil-gas separation structure is integrated in the cylinder head cover, the design complexity is higher, and meanwhile, the cylinder head cover which is not integrated with the oil-gas separation structure is increased in arrangement space and correspondingly increased in overall height.
Disclosure of Invention
The utility model aims at the defect that above-mentioned prior art exists, provide an oil-gas separation chamber apron assembly for gasoline engine, make cylinder head cover design simplifications, reduce and arrange the space, optimize the oil-gas separation structure to improve oil-gas separation efficiency.
The utility model discloses a realize that the technical scheme that above-mentioned purpose adopted is: an oil-gas separation chamber cover plate assembly for a gasoline engine comprises an oil-gas separation chamber cover plate, a labyrinth cover plate and a PCV valve assembly, wherein a middle partition plate and a lower partition plate are arranged on the inner side surface of the oil-gas separation chamber cover plate, the inner cavity of the oil-gas separation chamber cover plate is divided into a first inner cavity and a second inner cavity by the middle partition plate, the lower partition plate is positioned in the first inner cavity, a plurality of barrier strips connected with the lower partition plate or the middle partition plate are connected between the lower partition plate and the middle partition plate, the labyrinth cover plate is assembled at the inner edge of the second inner cavity and then encloses a second cavity with the second inner cavity, the outer surface of the labyrinth cover plate in the oil-gas separation chamber cover plate and a cavity formed by connecting the first inner cavity are used as the first cavity, one end of the labyrinth cover plate is provided with an air inlet communicated with the second cavity, oil-gas mixed gas whirling in the first cavity enters the second cavity through the labyrinth cover, the PCV valve assembly is disposed in the outlet line.
The utility model discloses a further technical scheme is: still be equipped with many ribs in the inboard first inner chamber of oil-gas separation chamber apron, the rib is connected respectively between median septum and the lower baffle and between lower baffle and the oil-gas separation chamber apron inner wall.
The utility model discloses oil-gas separation chamber cover plate assembly for gasoline engine has following beneficial effect:
1. the utility model discloses divide into first cavity second cavity with oil-gas separation chamber apron assembly, set up the shelves strip in oil-gas separation chamber apron median septum, lower baffle side, carry out preliminary direction to the oil-gas mixture, realize the initial separation, avoid the direct separation channel that gets into the second cavity of great oil drop, the inlet port labyrinth structure of labyrinth cover board, and set up the baffle in the second cavity inboard, carry out secondary separation and smart separation to the oil-gas mixture respectively, effectively improve oil-gas separation efficiency;
2. the cylinder head cover has a simplified structure, the arrangement space is reduced, and the overall height size of the engine is effectively reduced.
The following describes the oil-gas separation chamber cover plate assembly for a gasoline engine according to the present invention with reference to the accompanying drawings and examples.
Drawings
FIG. 1 is a schematic structural view of a prior art oil-gas separation cover plate;
FIG. 2 is a schematic structural view of a prior art baffle assembly;
FIG. 3 is another side view of the bulkhead assembly of FIG. 2;
FIG. 4 is a schematic view of a combination of a prior art oil and gas separation cover plate and a baffle assembly;
FIG. 5 is a schematic view of the structure of the cover plate assembly of the oil-gas separation chamber for the gasoline engine of the present invention;
the reference numbers illustrate: 1-an oil-gas separation chamber cover plate, 2-a middle clapboard, 3-a lower clapboard, 4-a labyrinth cover plate, 5-a first inner cavity, 6-a second inner cavity, 7-ribs, 8-barrier ribs, 9-an air inlet hole, 10-a baffle plate, 11-an oil return hole and 12-an air outlet pipeline.
Detailed Description
As shown in FIG. 5, the utility model discloses oil-gas separation chamber apron assembly for gasoline engine, including oil-gas separation chamber apron 1, labyrinth cover 4 and PCV valve assembly.
The surface of the inner side of the oil-gas separation chamber cover plate 1 is provided with a middle partition plate 2 and a lower partition plate 3, the middle partition plate 2 divides the inner cavity of the oil-gas separation chamber cover plate 1 into a first inner cavity 5 and a second inner cavity 6, the lower partition plate 3 is positioned in the first inner cavity 5, and a plurality of barrier strips 8 connected with the lower partition plate 3 or the middle partition plate 2 are connected between the lower partition plate 3 and the middle partition plate 2. Still be equipped with many ribs 7 in the first inner chamber 5 of oil-gas separation chamber apron 1 inboard, rib 7 is connected respectively between median septum 2 and lower baffle 3 and between lower baffle 3 and the oil-gas separation chamber apron 1 inner wall. The labyrinth cover plate 4 assembles and encloses into the second cavity with second inner chamber 6 behind the 6 inner edges of second inner chamber, the cavity that labyrinth cover plate 4 surface and first inner chamber 5 in the oil-gas separation chamber apron 1 link becomes first cavity, labyrinth cover plate 4 one end is equipped with the inlet port 9 that communicates to in the second cavity, inlet port 9 is the labyrinth structure, can block big oil droplet, the gas-oil mixture gas that circles round in the first cavity gets into the second cavity through inlet port 9 of labyrinth cover plate 4, be equipped with baffle 10 in the second cavity, still be equipped with return opening 11 on the labyrinth cover plate 4, oil-gas separation chamber apron 1 one side is connected with the ventiduct pipeline 12 that communicates the second cavity, the PCV valve assembly sets up in ventiduct pipeline 12, the PCV valve assembly is prior art, it is not the utility model's invention point, its specific structure is not shown in the figure.
The median septum 2 and the labyrinth cover 4 divide the oil-gas separation chamber into a first chamber and a second chamber. The inner wall of the oil-gas separation chamber cover plate 1 is provided with ribs 7, the side faces of the middle partition plate 2 and the lower partition plate 3 are provided with baffle bars, primary oil-gas separation is carried out on oil-gas mixture entering the first cavity from an air inlet, secondary oil-gas separation is carried out on the mixture entering the second cavity from the first cavity through an air inlet 9 of the labyrinth cover plate 4, the inner side face of the labyrinth cover plate 4 is provided with a baffle plate 10, and the baffle plate 10 is used for finely separating gas entering the second cavity through the secondary separation, so that the oil-gas separation efficiency is effectively improved. The labyrinth cover plate 4 is provided with an oil return hole 11, and the engine oil which is finely separated flows back to the crankcase through the oil return hole 11. The gas outlet pipeline 12 is arranged on one side of the oil-gas separation chamber cover plate 1, the inner end of the gas outlet pipeline 12 is communicated with the second chamber, the outer end of the gas outlet pipeline 12 is used for being connected with an engine (not shown in the figure), and finely separated gas is sent to the engine through the gas outlet pipeline 12. A PCV valve assembly (not shown) is disposed on the outlet line 12, and controls the flow rate by reciprocating the PCV valve assembly back and forth through a spring and a support as the inlet pressure changes.
The above embodiments are only preferred embodiments of the present invention, the structure of the present invention is not limited to the forms illustrated in the above embodiments, and any modifications, equivalent substitutions and the like made within the spirit and principle of the present invention should be included within the scope of the present invention.
Claims (2)
1. An oil-gas separation chamber cover plate assembly for a gasoline engine comprises an oil-gas separation chamber cover plate (1), a labyrinth cover plate (4) and a PCV valve assembly, and is characterized in that a middle clapboard (2) and a lower clapboard (3) are arranged on the inner side surface of the oil-gas separation chamber cover plate (1), the inner cavity of the oil-gas separation chamber cover plate (1) is divided into a first inner cavity (5) and a second inner cavity (6) by the middle clapboard (2), the lower clapboard (3) is positioned in the first inner cavity (5), a plurality of baffle strips (8) connected with the lower clapboard (3) or the middle clapboard (2) are connected between the lower clapboard (3) and the middle clapboard (2), the labyrinth cover plate (4) is assembled behind the inner edge of the second inner cavity (6) to form a second cavity, the cavity formed by connecting the outer surface of the labyrinth cover plate (4) in the oil-gas separation chamber cover plate (1) and the first inner cavity (5) is a first cavity, one end of the labyrinth cover plate (4) is provided with an air, the oil-gas mixed gas which circles round in the first cavity enters the second cavity through an air inlet hole (9) of the labyrinth cover plate (4), a baffle plate (10) is arranged in the second cavity, an oil return hole (11) is further formed in the labyrinth cover plate (4), one side of the oil-gas separation chamber cover plate (1) is connected with an air outlet pipeline (12) communicated with the second cavity, and the PCV valve assembly is arranged in the air outlet pipeline (12).
2. The oil-gas separation chamber cover plate assembly for the gasoline engine as defined in claim 1, wherein a plurality of ribs (7) are further provided in the first inner chamber (5) inside the oil-gas separation chamber cover plate (1), and the ribs (7) are respectively connected between the middle partition plate (2) and the lower partition plate (3) and between the lower partition plate (3) and the inner wall of the oil-gas separation chamber cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920334174.XU CN209908592U (en) | 2019-03-15 | 2019-03-15 | Oil-gas separation chamber cover plate assembly for gasoline engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920334174.XU CN209908592U (en) | 2019-03-15 | 2019-03-15 | Oil-gas separation chamber cover plate assembly for gasoline engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209908592U true CN209908592U (en) | 2020-01-07 |
Family
ID=69032900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920334174.XU Expired - Fee Related CN209908592U (en) | 2019-03-15 | 2019-03-15 | Oil-gas separation chamber cover plate assembly for gasoline engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209908592U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114251156A (en) * | 2020-09-21 | 2022-03-29 | 深圳臻宇新能源动力科技有限公司 | Oil-gas separator |
-
2019
- 2019-03-15 CN CN201920334174.XU patent/CN209908592U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114251156A (en) * | 2020-09-21 | 2022-03-29 | 深圳臻宇新能源动力科技有限公司 | Oil-gas separator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101918103A (en) | The separator that has the dispatch tube discharging | |
| CN103939177B (en) | A kind of mazy type and the spiral plastic oil gas separating device combined | |
| CN108049937A (en) | Oil and gas separating system built in valve mechanism cover | |
| CN101539045A (en) | Gas and oil separating plant for internal combustion engine | |
| CN209908592U (en) | Oil-gas separation chamber cover plate assembly for gasoline engine | |
| CN204827602U (en) | Car supercharged engine valve mechanism cover's oil -gas separation chamber | |
| CN201568110U (en) | Novel valve chamber housing labyrinth structure | |
| CN109595055A (en) | A kind of natural gas engine with tree-shaped board-like adaptive ventilating system | |
| CN201610778U (en) | Structure of air exchange device of engine | |
| CN109139186A (en) | A kind of strainer oil drive formula voltage adaptive controlling oil-gas separating device of engine | |
| CN109236413A (en) | A kind of tree-shaped leaf fat drive formula voltage adaptive controlling oil-gas separating device of engine | |
| CN210977726U (en) | Exhaust structure of fuel prefilter | |
| CN109469531B (en) | Crankcase ventilation system oil and gas separator assembly and vehicle | |
| CN201377426Y (en) | Novel combined oil pump with oil-gas separating function and circular inside-engaged gear | |
| CN101514699B (en) | Oil-gas separation circular arc type inside engaged gear combined oil pump | |
| CN109139188A (en) | A kind of filter plate gas drive formula voltage adaptive controlling oil-gas separating device of engine | |
| CN212339697U (en) | Oil separator, refrigerating system and air conditioner | |
| CN205977320U (en) | Oil -gas separator | |
| CN208294599U (en) | A kind of gas and oil separating plant and internal combustion engine | |
| CN211474289U (en) | Oil-gas separation engine cover | |
| CN112576334B (en) | Oil-gas separator, engine and vehicle | |
| CN209586466U (en) | A kind of partition gas drive formula oil-gas separating device of engine | |
| CN209469474U (en) | Oil-gas separating device of internal combustion engine | |
| CN110685778A (en) | Engine respiratory system | |
| CN208236476U (en) | Gas and oil separating plant with zigzag oil return baffle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200107 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |